SH7014 Datasheet, PDF (344/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

12. Serial Communication Interface (SCI)
Bit 7⎯Communication Mode (C/A): Selects whether the SCI operates in the asynchronous or
clock synchronous mode.
Bit 7
C/A
0
1
Description
Asynchronous mode
Clocked synchronous mode
(initial value)
Bit 6⎯Character Length (CHR): Selects 7-bit or 8-bit data in the asynchronous mode. In the
clock synchronous mode, the data length is always eight bits, regardless of the CHR setting.
Bit 6
CHR
Description
0
Eight-bit data
(initial value)
1
Seven-bit data*
Note: * When 7-bit data is selected, the MSB (bit 7) of the transmit data register is not
transmitted.
Bit 5⎯Parity Enable (PE): Selects whether to add a parity bit to transmit data and to check the
parity of receive data, in the asynchronous mode. In the clock synchronous mode, a parity bit is
neither added nor checked, regardless of the PE setting.
Bit 5
PE
Description
0
Parity bit not added or checked
(initial value)
1
Parity bit added and checked*
Note: * When PE is set to 1, an even or odd parity bit is added to transmit data, depending on
the parity mode (O/E) setting. Receive data parity is checked according to the even/odd
(O/E) mode setting.
Rev.5.00 Sep. 27, 2007 Page 310 of 716
REJ09B0398-0500